archive: Check whether we are trying to open an empty file

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

diff --git a/src/libpakfire/archive.c b/src/libpakfire/archive.c
index 62499943b89cdf30a448b9bed3155fd7a8a9a50e..799eda75bdb05353b9cd84e28c720ab60baafdd4 100644 (file)
--- a/src/libpakfire/archive.c
+++ b/src/libpakfire/archive.c
@@ -566,6 +566,13 @@ static int __pakfire_archive_filter_metadata(struct pakfire* pakfire,
 static int pakfire_archive_read_metadata(struct pakfire_archive* archive) {
        int r;
 
+       // Check if the archive file actually has any contect
+       if (!archive->stat.st_size) {
+               ERROR(archive->pakfire, "Trying to open an empty archive file\n");
+               errno = EINVAL;
+               return 1;
+       }
+
        DEBUG(archive->pakfire, "Reading archive metadata...\n");
 
        // Walk through the archive